Issue24828
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Created on 2015-08-08 14:03 by xmorel, last changed 2022-04-11 14:58 by admin. This issue is now closed.
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msg248269 - (view) | Author: Xavier Morel (xmorel) * | Date: 2015-08-08 14:03 | |
It looks to be fixed in 3.3 and up, but in Python 2.7 import ast m = ast.Module(body=[ ast.Expr(value=ast.Name(id='foo', ctx=ast.Store())) ]) ast.fix_missing_locations(m) code = compile(m, '', mode='exec') eval(code) will segfault on eval. So will a similarly incorrect ast.Attribute node. Version tested: Python 2.7.10 (default, May 28 2015, 12:02:55) [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin |
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msg325987 - (view) | Author: Karthikeyan Singaravelan (xtreak) * | Date: 2018-09-21 12:46 | |
Thanks for the script. The crash is still reproducible as of now with at least python 2.7.14 . I need to check on the latest 2.7 branch yet. On python 3 it produces an error as below : Traceback (most recent call last): File "../backups/bpo24828.py", line 6, in <module> code = compile(m, '', mode='exec') ValueError: expression must have Load context but has Store instead Crash report on Mac OS MacOS/Python Identifier: Python Version: 2.7.14 (2.7.14) Code Type: X86-64 (Native) Parent Process: zsh [13087] Responsible: iTerm2 [230] User ID: 501 Date/Time: 2018-09-21 18:13:27.072 +0530 OS Version: Mac OS X 10.10.4 (14E46) Report Version: 11 Anonymous UUID: BCB9DD4C-B310-CA87-7308-42F6715FDA83 Sleep/Wake UUID: FA788657-D625-40D6-8701-16E042836F5F Time Awake Since Boot: 24000 seconds Time Since Wake: 14000 seconds Crashed Thread: 0 Dispatch queue: com.apple.main-thread Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000 VM Regions Near 0: --> __TEXT 00000001075be000-00000001075c0000 [ 8K] r-x/rwx SM=COW /usr/local/Cellar/python@2/2.7.14_3/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 org.python.python 0x00000001075fc8bb dict_set_item_by_hash_or_entry + 14 1 org.python.python 0x000000010764fa63 PyEval_EvalFrameEx + 14664 2 org.python.python 0x000000010764bf29 PyEval_EvalCodeEx + 1583 3 org.python.python 0x000000010764b8f4 PyEval_EvalCode + 54 4 org.python.python 0x0000000107647fdc builtin_eval + 570 5 org.python.python 0x00000001076527c8 PyEval_EvalFrameEx + 26285 6 org.python.python 0x000000010764bf29 PyEval_EvalCodeEx + 1583 7 org.python.python 0x000000010764b8f4 PyEval_EvalCode + 54 8 org.python.python 0x000000010766f05d run_mod + 53 9 org.python.python 0x000000010766f100 PyRun_FileExFlags + 133 10 org.python.python 0x000000010766ec4f PyRun_SimpleFileExFlags + 698 11 org.python.python 0x00000001076805f9 Py_Main + 3137 12 libdyld.dylib 0x00007fff9354a5c9 start + 1 Thread 0 crashed with X86 Thread State (64-bit): rax: 0xc6079cb3d3de86bb rbx: 0x00000001077d3168 rcx: 0x0000000000000000 rdx: 0xc6079cb3d3de86bb rdi: 0x00000001077d3168 rsi: 0x00000001078f4a08 rbp: 0x00007fff586410d0 rsp: 0x00007fff586410c0 r8: 0x0000000000000000 r9: 0x0000000000000000 r10: 0x0000000000000001 r11: 0x000000000024e797 r12: 0x0000000107871a00 r13: 0x0000000107871b70 r14: 0x0000000000000008 r15: 0x00000001078f4a08 rip: 0x00000001075fc8bb rfl: 0x0000000000010206 cr2: 0x0000000000000000 Thanks |
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msg326079 - (view) | Author: Karthikeyan Singaravelan (xtreak) * | Date: 2018-09-22 07:16 | |
Reproducible on latest 2.7 branch as well. Stack trace as below : Program received signal SIGSEGV, Segmentation fault. dict_set_item_by_hash_or_entry ( op={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, key=<optimized out>, hash=<optimized out>, value=<optimized out>, ep=<optimized out>) at Objects/dictobject.c:792 792 Py_INCREF(value); (gdb) bt #0 dict_set_item_by_hash_or_entry (op={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, key=<optimized out>, hash=<optimized out>, value=<optimized out>, ep=<optimized out>) at Objects/dictobject.c:792 #1 PyDict_SetItem (op={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, key='foo', value=0x0) at Objects/dictobject.c:848 #2 0x00000001000ab62e in PyEval_EvalFrameEx (f=<unknown at remote 0x8>, throwflag=<optimized out>) at Python/ceval.c:2186 #3 0x00000001000a735a in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=0x0, argcount=<optimized out>, kws=<optimized out>, kwcount=<optimized out>, defs=0x0, defcount=<optimized out>, closure=<optimized out>) at Python/ceval.c:3604 #4 0x00000001000a6cb6 in PyEval_EvalCode (co=0x100293168, globals='foo', locals=0x0) at Python/ceval.c:669 #5 0x00000001000a302a in builtin_eval (self={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, args=<optimized out>) at Python/bltinmodule.c:679 #6 0x00000001000ae8a7 in call_function (oparg=<optimized out>, pp_stack=<optimized out>) at Python/ceval.c:4372 #7 PyEval_EvalFrameEx (f=Frame 0x1002d4bc0, for file ../backups/bpo24828.py, line 7, in <module> (), throwflag=<optimized out>) at Python/ceval.c:3009 #8 0x00000001000a735a in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=0x0, argcount=<optimized out>, kws=<optimized out>, kwcount=<optimized out>, defs=0x0, defcount=<optimized out>, closure=<optimized out>) at Python/ceval.c:3604 #9 0x00000001000a6cb6 in PyEval_EvalCode (co=0x100293168, globals='foo', locals=0x0) at Python/ceval.c:669 #10 0x00000001000d4de4 in run_mod (mod=<optimized out>, filename=<optimized out>, globals={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, locals={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, flags=<optimized out>, arena=<optimized out>) at Python/pythonrun.c:1385 #11 PyRun_FileExFlags (fp=<optimized out>, filename=<optimized out>, start=<optimized out>, globals={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, locals={'code': <code at remote 0x10059cc30>, 'ast': <module at remote 0x1005ab868>, '__builtins__': <module at remote 0x10023db08>, '__file__': '../backups/bpo24828.py', 'm': <Module(body=[<Expr(lineno=1, value=<Name(ctx=<Store at remote 0x1005a5f10>, id='foo', col_offset=0, lineno=1) at remote 0x1005c2790>, col_offset=0) at remote 0x1005c27d0>]) at remote 0x1005c2810>, '__package__': None, '__name__': '__main__', '__doc__': None}, closeit=1, flags=<optimized out>) at Python/pythonrun.c:1371 #12 0x00000001000d491a in PyRun_SimpleFileExFlags (fp=0x7fff71bec070, filename=0xc6079cb3d3de86bb <error: Cannot access memory at address 0xc6079cb3d3de86bb>, closeit=8, flags=0x7fff5fbffa70) at Python/pythonrun.c:957 #13 0x00000001000ea8f2 in Py_Main (argc=<optimized out>, argv=<optimized out>) at Modules/main.c:645 #14 0x00007fff8b5055c9 in start () from /usr/lib/system/libdyld.dylib #15 0x00007fff8b5055c9 in start () from /usr/lib/system/libdyld.dylib #16 0x0000000000000000 in ?? () Adding Benjamin since he is the 2.7 release manager and it's something specific to 2.7. Thanks |
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msg378704 - (view) | Author: Xavier Morel (xmorel) * | Date: 2020-10-16 06:04 | |
Should I close this since I believe 2.7 is not supported anymore? |
History | |||
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Date | User | Action | Args |
2022-04-11 14:58:19 | admin | set | github: 69016 |
2020-10-16 12:32:50 | serhiy.storchaka | set | status: open -> closed resolution: out of date stage: resolved |
2020-10-16 06:04:32 | xmorel | set | messages: + msg378704 |
2018-11-21 08:00:59 | serhiy.storchaka | set | versions: - Python 3.2 |
2018-09-22 07:16:22 | xtreak | set | nosy:
+ benjamin.peterson messages: + msg326079 |
2018-09-21 12:46:09 | xtreak | set | nosy:
+ xtreak messages: + msg325987 |
2015-08-08 14:03:34 | xmorel | create |